Motor.



"MNM-1,461.' PATBNTED FEB. 24,1903;

o. J.,PoLLocK.

MUTOR. APPLLUATIOH FILED snm. no, 1902..

2 SHEETS-SHEET 1.

l0 MODEL.

1H: Norms Firms cn.. Puorguma., WASHINGTON. D. c.

Y same.

4lA-Tinv'r OFFICE.

CALVIN JAY POLLOOK, OF KIRKSVILLE, MISSOURI.

MOTOR.

SPECIFICATION forming part of Letters Patent N 0. 721,461, datedFebruary 24, 1903. Application led-September 20, 1902. Serial No.124,230. (No model.)

To @ZZ whom t may concern:

Be it known thatI, CALVIN JAY POLLOCK, a citizen of the United States,residing at Kirksville, in the county of Adair and State of Missouri,have invented a new and useful Motor, of which the following is aspecifica-v No. 675,497, granted to 'me June 4., 1901, and

to provide a simple and comparatively inexpensive motor designedespecially for oper` ating air-compressors and provided with a rotaryweight adapted to be raised on the ineffective stroke'of theaircompressor and to fall or move downward on the effective stroke,whereby the power willbeapplied most effectively and advantageously tothe resistance encountered.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fullydescribed, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1I is a .side elevation of a motor constructedin accordance with this invention. Fig. 2 is a plan view of the Fig-3 isa transverse sectional View. Like numerals ofreference designatecorresponding parts in all the figures of the drawings.

1 designates a supportingframe, constructed of anysuitable material andof any desired size and configuration and composed of two sides andsuitable connecting cross-pieces and provided at opposite sides withsuitable bearings for the reception of'a transverse shaft 2. The shaft 2carries at one'end a rotary element, preferably consisting of a wheel 3,provided with a weight 4, arranged at'the periphery of the wheel orkatanyother suitable point and adapted,*as' hereinafterezplained, to beraisedon the ineffective stroke of a piston 5 and an air-compressor 6and to fall or move downward on the effective stroke of the same,whereby a great power is eectively applied to an air-compressor or otherdevice on the working or effective stroke of the same. Although themotor is shown applied to anaircompressor, yet it will be readilyunderstood that it is applicable to various other machines and devices.The transverse shaft 2 also forms a pivot or fulcrum for an oscillatoryframe or lever 7, which although arranged 'horizontally in the drawingsmay operate in any other de- .sired position,and it isapproximatelyoblong, as clearly shown in Fig. 2, and is provided at opposite sidesnear oneend with a pair of upwardly-extending `hangers 8, which' areprovided with suitable perforations or bearingopenings for the'shaft 2,and in practice any desired form of bearings or antifriction devices maybe employed. l The oblong frame or lever may be constructed as shown inthe accompanying drawings or in any other desired manner, and the sides.may consist of bars arranged inl pairs and spaced apart to receive' thehangers and also to receive bearings or journal-boxes 9 for acrank-shaft10. The bearings or journal-boxes may be of any desired construction,and theshaft l0 is pro` vided at its ends with cranks 11,which areconnected by links 12 with the base of the frame or with any otherstationary support. The

links 12, which consist of rods or bars, are v adapted to oscillatelongitudinally of the main or supporting frame, and they cause the frameor lever'7 to oscillate when the crank-shaft is rotated. Thelower endsof the rods or bars may be fulcrumed in `any suitable manner, and theirupperends may be bentor extended inward at right angles to form pivotsfor connecting them to the cranks of the shaft 10.

The outer or counter shaft l10 is connected with the inner or fulcrumshaft 2 by means of snail-gear '13 and 14, provided withreversely-arranged spirally-disposed cogs or teeth, which are adapted tomesh and to vary the levers of the machine, whereby the actuating poweron the ineffective stroke of the air-compressor or other device 'will beapplied to the weight to be lifted, so` that on the effective stroke ofthe air-compressoror other device the power of the weight' will beadvantageously applied. t

The outer end of the frame or lever 7 is connected with the piston 15 ofa cylinder 16, designed to be operated by steam, compressed air, or anyother motive power. The piston 5'ofl the air-compressor 6 is connectedwith the lever-frame at a point between the cylljO inder 16 and thefulcrum of the frame in order to increase the power of the machine, andthe lever-frame may be of any desired length, and the air-compressor andthe piston of the cylinder may be arranged at any point to secure thedesired application of power. As the weight begins to ascend the cogs ofthe snail-gear 13, meshing with the other gear 14, are located thegreatest distance from the center of the said gear 13, and the cogs orteeth of the other gear 14 are located the shortest distance from thecenter, so that,

great leverage is obtained for lifting the weight. paratively smallamount of power will be required for swinging the lever or frame upwardto raise the weight. As the weight. begins to descend the cogs or teethof the gearwheel13 gradually approach the center,thereby increasing theleverage or driving power of the rotary elements and its weight, and theteeth of the other snail-gear 14 gradually increase their distance fromthe center, thereby increasing the leverage of the machine and providinga slow downward stroke of great power for operating the air-compressor.The greatest application of power is at the end ot' the downward stroke,where the greatest resistance is encountered in an air-compressor, andby means of the falling of the weight and the automatic change ofleverage by the snail-gear an excessive application of power is producedat the instant where it will be found most effective and of thegreatestladvantage in air-compressors. Instead of applying the poweronthe downward stroke of the oscillatory frame or lever the snailgears andthe other parts may be arranged for applying the maximum power on anupward stroke or at any other desired point to suit the character of themachine or device to be operated.

It will be seen that the motor is exceedingly simple and inexpensive inconstruction, that it possesses great strength and durability, and thatthe leverage resulting from the arrangement of the snail-gears and theoscillatory frame is such that only a very small amount of power will benecessary to lift the weight, and that the power of the motor is appliedduring the downward movement of the weight, which supplements the actionof the oscillatory frame or lever. It will also be apparent that thesnail-gearing automatically changes the leverage as the application ofthe power is changed, the power being applied to the outer end of thelever or frame to lift the weight and the weight operating as the powerto operate the air-compressor or other device. Ordinary or sprocketgearwheels may be employed, if desired, for communicating motion fromone shaft to the other, and I desire it to be understood that variouschanges in the form, proportion, size, and the minor details ofconstruction within the scope of the appended claims may be resorted towithout departing from the spirit By this arrangement only a com-v orsacrificing any of the advantages of this invention.

In order to balance the machine and to prevent the same from beingjarred or vibrated and loosened at its foundations by the intermittentdriving action of the rotary lweight, a reversely-rotating weight 17 maybe employed. This weight, which is located at the side of the machineopposite that at which the weight 4 is arranged, is mounted on a rotaryelement, preferably consisting of a wheel 18, keyed or otherwise securedto a countershaft 19. The counter-shaft 19 carries a pinion or gear 20,which meshes with a pinion or gear 21 ot' the inner shaft 2, upon whichthe wheel 3 is mounted. Either or both ofthese rotary weights may beprovided, and it will be clear that on the effective stroke of theaircompressor the weights will swing downward in opposite directions andwill counterbalance each other to prevent any jar or vibration of theframework or any tendency of the same to loosen at the foundation.

1. In a machine of the class described the combination of anoscillatoryframe or lever, a rotary element provided with a weight,gearing connected with the rotary element for communicating motion toand for being operated by the same, one of the gears being 1ocatedbeyond the pivot of the oscillatory frame or lever and being connectedwith a stationary or fixed support, whereby the frame or lever will beoscillated when the gear is rotated, and means connected with the outerend of the frame or lever for actuating the same to lift the weight,substantially as described.

2. In a machine of the class described the combination of an oscillatoryframe or lever, a rotary element having a weight, gearing connected withthe rotary element and located at the pivot of the frame or lever and ata point beyond the same, the outer gear being connected with a fixedsupport,whereby the frame or lever will be oscillated when the Weight isrotated, and means for raising the weight, substantially as described.

3. In a machine of the class described the combination of an oscillatoryframe or lever, a rotary element having a weight, gearing connected withthe rotary element and located at the pivot of the frame and at a pointbeyond the same, the outer gear being connected with a 'fixed support,whereby the frame will be oscillated when it is rotated, and meansconnected with the outer end of the frame for rotating the weight,substantially as described.

4l. In a machine of the class described the combination of anoscillatory frame or lever, a rotary element having a weight,snail-gearing connected with the weight for rotating the same and forbeing actuated by the weight, one of the snail-gears being carried bythe frame or lever at a point beyond the pivot thereof, and connectedwith a fixed support for oscillating the frame, and means connect- TIOed with the outer end of the frame or lever for actuating the same toraise the weight, said snail-gearin g being arranged to automaticallychange the leverage as the machine is alternately operated by the saidmeans and by the weight, substantially as described.

5. In a machine of the class described the combination of an oscillatoryframe or lever,

inner and'outer shafts, the inner shaft forming the pivot of theframe orlever, a rotary element having a weight and mounted on the inner shaft,gearing connecting the shafts, means for connecting the outer shafttothe fixed support, whereby the frame 0r lever is operated when theouter shaft is rotated, and means connected with the outer portion ofthe frame to oscillate thesame for moving the weight upward,substantiallyA as described.

6. In a machine of the class described the combination of an oscillatoryframe or lever, an inner shaft forming a fulcrum for the frame orlever,'an outer crank-shaft mounted on the frame or lever and connectedwith a fixed support, a rotary element having a weight and mountedon theinner shaft', sn'ail-gearin g connecting the shafts, and means connectedwith the outer portion of the frame or lever for moving the weightupward, substantially as described. Y

7. In a machine of the class described the combination of asupporting-frame, an oscillatory frame or lever, an inner shaft formingthe pivot for the oscillatory frame or lever,

an outer shaft provided at opposite sides with cranks and mounted on theframe or lever, links connecting the cranks with the supporting-frame,snail-gears mounted on the shaft and connected with each other, a rotarygear mounted on the shaft and provided with a y 'the machine, ofsnail-gearing arranged to reverse the leverage of the machineaccordingly as the same is actuated by the weight and the motive power,substantially as described.

I 9.- In a machine of the class described the combination of anoscillatory frame or lever, a motive power, a weight, said motive powerand weight being adapted to alternately actuatethe machine,andsnail-gearing arranged to change the leverage of the machine acvcordingly as the same is driven by the weight and by the motive power,substantially as described. p v

10. In a machine of the class described the combination with anoscillatory frame or lever, a motive power for actuating the same in onedirection, a pair of reversely-rotating weights for moving theoscillatory frame or lever in the opposite direction, and gearing forconnecting the rotary weights with thev oscillatory frame or lever,substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.v

CALVIN JAY POLLOCK.

Witnesses: Y

H. F. RILEY, J. H. J ocHUM, Jr.

